The physics of sports
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The Physics of Sports. Fermilab. Tevatron, 4 miles around. Main Injector, 2 miles around. Physics explains things that are very, very large. Physics explains things that are very, very small. Physics explains things that are right in front of us. Newton’s First Law.

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The Physics of Sports

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The physics of sports

The Physics of Sports


The physics of sports

Fermilab

Tevatron,

4 miles around

Main Injector,

2 miles around


Physics explains things that are very very large

Physics explains things that are very, very large.


Physics explains things that are very very small

Physics explains things that are very, very small.


Physics explains things that are right in front of us

Physics explains things that are right in front of us.


Newton s first law

Newton’s First Law

  • Objects at rest remain at rest

  • Objects in motion remain in motion

    UNTIL YOU APPLY A FORCE


Newton s second law

Newton’s Second Law

F = ma

What forces are important in sports?


Flight path

Flight Path


The home run swing

The Home Run Swing

  • Ball arrives on 100 downward trajectory

  • Big Mac swings up at 250

  • Ball takes off at 350

    • The optimum home run angle!

Courtesy of A. Nathan, University of Illinois. http://www.npl.uiuc.edu/~a-nathan/pob/


Newton s third law

Newton’s Third Law

For every action there is an equal and opposite reaction.


Conservation of energy

Conservation of Energy

Potential Energy

Kinetic Energy

Kinetic Energy

Compression Energy

Heat and Sound Energy


Conservation of momentum

Conservation of Momentum

If m1 = m2, then v1 = v2


The physics of sports

Conservation of Momentum


Equipment features

Equipment features

  • Ball material, size, shape, and texture

  • Properties of the club, bat, racquet, or stick


The physics of sports

http://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html


Air resistance drag

Air Resistance (drag)


F r i c t i o n

FRICTION


Resistance friction

Resistance & Friction


The physics of sports

The Power of Spin


Spins in figure skating

Spins in Figure Skating


Reaction time

Reaction Time


Downhill skier speed 80 mph

Downhill skier speed: 80 mph


The physics of sports

Reaction Time in Baseball

Courtesy of R. Adair through A. Nathan.


Measure your reaction time

Measure your reaction time…


Compare your reaction time

Compare your reaction time…

Equation used: t = √((2d)/g)


Physical laws explain the world

Physical laws explain the world

  • Newton’s Laws of Motion

  • Conservation of Energy

  • Conservation of Momentum

    These laws help us explain everything

    about sports.

    Physics really is everywhere!


Visit fermilab www fnal gov

Visit Fermilabwww.fnal.gov

  • Buffalo viewing

  • Bicycling

  • Walking

  • Roller blading

  • Canoeing

  • Fishing


Visit fermilab

Visit Fermilab

  • Lederman Science Center

  • Tours

  • Saturday morning physics

  • Ask a Scientist

On-line activities:

www-ed.fnal.gov


The physics of sports1

The Physics of Sports


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